<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Hello World</title>
    <link rel="stylesheet" href="/css/common.css">
    <!--  <script src="https://cdn.jsdelivr.net/npm/vue@2.6.14"></script> -->

    <!--  1, 在Chrome浏览器上安装插件 Vue.js devtools  -->
    <!--  2, 使用这个版本  -->
    <script src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js"></script>
</head>


<body>
<div id="app">
    <h1>{{ message }}</h1>
</div>
<script type="text/javascript">
    const app = new Vue({
        el: '#app',
        data: {
            message: 'Hello Vue !'
        }
    })
    // 3, 开启productionTip
    app.productionTip = true
</script>
</body>
</html>
